测定

The second and higher order elastic constants ofsome selected specimens are measured mainly by means of longitudinal wave entrance.

研制了基于计算机辅助信号处理与分析的材料弹性常数超声测定实验系统，对几种试件的二阶和高阶弹性常数进行了实际测定。

Luciferase activity was assayed with Dual-luciferase reporter system and measured by Luminometer.

以Duabludferase reporter系统为底物并采用荧光测定仪测定荧光酶活性。

A HPLC method was established for the quantitative determination of lutein in foods.

为了建立测定食品中的叶黄素含量的可靠方法，采用高效液相色谱法进行了测定。

This paper reports the method of determination luteolin in Chrysanthemum morifolium Ramat by HPLC.

首次用反相高效液相色谱法测定了菊花中的木犀草素，并对贵州省上市的不同菊花品种中的木犀草素进行了含量测定。

ObjectiveTo establish an HPLC method for content determination of luteolin from PSL.

目的建立草药半边旗中木犀草素含量的准确测定方法，并测定不同采收期半边旗中木犀草素的含量。

MTT colorimetry was used to detect the influence of Rg3 on lymphocyte transformation function and NK cytotoxicity. The activity of IL-2 was detected by lymphoblast proliferation assay and IFN-γ by cytopathic effect inhibition.

MTT法检测Rg3对小鼠淋巴细胞转化功能和NK细胞毒活性的影响，鼠脾T淋巴母细胞增殖分析法测定上清中IL-2活性，细胞病变抑制法测定IFN-γ活性。

The mouse splenocytes were induced with Rg3, and the activity of IL-2 was detected by lymphoblast proliferation assay and IFN-γ by cytopathic effect inhibition.

以Rg3诱导小鼠脾细胞，用鼠脾T淋巴母细胞增殖分析法测定上清中IL-2活性，细胞病变抑制法测定IFN-γ活性。

Macerate 1.0g of the powdered sample with 20.0 ml of chloroform plus 0.3ml of 25％ NH_4 OH in a glassstoppered flask overnight.

本文报道用不含粘合剂的氧化铝薄层，以二甲苯-丙酮-无水乙醇-二乙胺(50：40：10：0.6)为展开剂分离茄科植物中的莨菪碱、东莨菪碱、山莨菪碱、樟柳碱及红古豆碱等五种莨菪烷生物碱，用改良Dragendorff试剂-Wagner试剂(1：1)显色，定量收集莨菪碱、东莨菪碱及山莨菪碱的斑点，莨菪碱和东莨菪碱用氨甲醇洗脱，蒸干洗脱液后分别用pH 5.6及pH 4.5的溴甲酚绿溶液作比色测定；山莨菪碱用4％醋酐氯仿洗脱，蒸干洗脱液后用pH 5.6的溴甲酚绿溶液作比色测定。

Theoptimeter growthing environment of Anthurium andreanum seedlings wastested by the photosynthetic rate;The important factor of the soilless culture of Anthurium andreanum seedlings was decided by variance analysis of the total areas of leaves, height of seedling, the content of chlorophyll, photosynthetic rate;The best statistical level was defined by Duncans test;The optimum substrate and nutritional solution were determined by analysis of the major components; The requirements of macro- element at the different growth period have determined by the timing of flowering and measuring the content of N, P, K, Ca , Mg of leaves which can offer the theory of the soillessculture of Anthurium andreanum.

测定各处理组合的总叶面积、株高、叶绿素含量、光合速率等形态、生理指标，并对这些指标进行正交试验的方差分析来决定影响安祖花无土栽培的主要因素。通过对主要因素各水平进行新复极差检验得出最好的水平。综合考虑主要因素和水平找出最适合安祖花无土栽培的基质、营养液。观察各处理安祖花初花期的早晚，并通过测定不同时期叶片中的N、P、K、Ca、Mg的含量，确定安祖花不同生长时期对大量元素的需求情况，为今后更好的进行安祖花无土栽培提供理论依据。

Hairy root of Salvia miltiorrhiza were cultured by liquid 6,7-V mediums with default,1/8,1/4,normal and 4,8 times of macroelement、microelement and organic element.

以6，7-V液体培养基为基本培养基，分别将其大量、微量和有机元素的含量设定为缺失(0)、1/8、1/4、1、4、8倍，取培养相同时间的毛状根测定其增长倍数，利用HPLC法测定二氢丹参酮、隐丹参酮、丹参酮Ⅰ、丹参酮ⅡA的含量。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。